Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Radioactive Tracer Pulse Method of Evaluating Fracturing of Underground Oil Shale Formations.

Authors
Lorenz-PB
Source
NTIS: PB 225 349 :33 pages
Link
NIOSHTIC No.
10009056
Abstract
A Bureau of Mines feasibility study on the use of tracer pulses to assess the degree of fracturing in an underground formation consisted of three phases: 1. A laboratory study on sand packs and open tubes, which developed a correlation between dispersion of the pulse and size of the flow channels. 2. A test on a retort, 11 feet in diameter and 45 feet high, packed with shale rubble. Void volume was measured, but evaluation of channel size was not possible because of interference from the space unoccupied by the matrix. 3. A field test on an explosively fractured shale formation. Pressure, flow, and transit time led to qualitative estimates of fracture pattern, but quantitative detection of dispersion in the formation was overwhelmed by dispersion effects in the well.
Publication Date
19730101
Document Type
IH; Report of Investigation;
Fiscal Year
1973
NTIS Accession No.
PB-225349
NTIS Price
A04
Identifying No.
RI 7791
Source Name
NTIS: PB 225 349
TOP